Rotary Gyroscopes TRIZ Cases

Direct blade-mounted MEMS rate gyros estimate cyclic pitch and cone angle without markers, reducing rotor-state errors and complexity.

Polynomial fitting of MEMS gyroscope drift cuts gyrocompassing error, enabling accurate north angle measurement with shorter integration time.

Earth-rate fitting across rotation angles and time corrects gyroscope drift, improving true north estimation with shorter integration.

Co-located inner and outer flexures enable fine rotational adjustment without translation, improving repeatability and simplifying manufacture.

Acoustic attacks can corrupt unmanned-vehicle gyro readings, while residual differentials and evaluation functions support diagnosis without false alarms.

Multiple offset MEMS sense axes and sine fitting determine geographical heading while compensating for gyro bias errors.

A tape-suspended meridian gyroscope uses centrifugal pendulums to align its spin axis with true north through purely mechanical means.

A MEMS angular rate sensor drives a spinning device to determine true north via phase differential measurement.

An orientation device uses inclination and contact sensors to automatically trigger true north determination when placed on a support.

A north-referencing goniometer uses an acceleration sensor to detect sinking rates and correct gyroscope errors.

Replacing mechanical rotors with an alkali vapor cell reduces device size and power consumption while maintaining high bias stability.

Dual sensors detect a physical zero-initialization point on the rotating body to reset accumulated gyroscope drift, ensuring accurate screen orientation.

A compass device calculates a common reference point from magnetic field vectors to determine direction.